Calculating inductor value

[Livingston]

inductor value

Please somebody guide me how to calculate inductor for my circuit

My project is vehicle tracking system, it will be powered by vehicle battery of 12volt, but i dono from where the spikes comes my gsm module getting corrupted coz of spikes, There is no inductor in my power supply circuit so please somebody guide me to calculate the inductor value

circuit details

Volt - 12v
Current - 2A(peak), normaly 800mA.

 

[equivalent]

calculate inductor

it will be powered by vehicle battery of 12volt

...only in exceptional circumstances will it be 12 volts...

i dono from where the spikes come

They do that. Get used to it or don't even start the project. Read ISO 7637 for entertainment.


So, to summarise, there is a problem that you don't understand, you've decided to adopt a bad solution, you are not going to supply the information needed to work out your bad solution you are asking the wrong question and you want someone else to do the work. Or have I misssed something?